The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
Mar. 26, 2004
Kenichi Miyaguchi, Tokyo, JP;
Morishige Hieda, Tokyo, JP;
Tamotsu Nishino, Tokyo, JP;
Masatake Hangai, Tokyo, JP;
Moriyasu Miyazaki, Tokyo, JP;
Norihiro Yunoue, Tokyo, JP;
Hideki Hatakeyama, Tokyo, JP;
Yukihisa Yoshida, Tokyo, JP;
Tadashi Takagi, Tokyo, JP;
Kenichi Miyaguchi, Tokyo, JP;
Morishige Hieda, Tokyo, JP;
Tamotsu Nishino, Tokyo, JP;
Masatake Hangai, Tokyo, JP;
Moriyasu Miyazaki, Tokyo, JP;
Norihiro Yunoue, Tokyo, JP;
Hideki Hatakeyama, Tokyo, JP;
Yukihisa Yoshida, Tokyo, JP;
Tadashi Takagi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a small-size phase shift circuit having a broad band characteristic. The phase shift circuit includes: a first switching element for switching between a through path and a capacitance capacity; a second switching element for switching the capacitance capacity for the through path and the ground; and a first and a second inductor having inductance. One end of the first switching element is connected to one end of the second switching element by the first inductor while the other ends of the first and the second switching element are connected to each other by the second inductor. One end of the first switching element is connected to a high-frequency signal input terminal while the other end of the first switching element is connected to a high-frequency signal output terminal. Thus, it is possible to constitute a phase device satisfying a predetermined condition.